Product Name: Low Price Dwb 28 Tunnel Light Single Hydraulic Acrow Prop Selling Model NO.: DWB series Standard: GB Certification: CE, RoHS Model: Dwb28-30/100 Max Height (mm): 2800 Working Stroke(mm): 570/820 Rated Resistance(Kn): 30 Rated Working Pressure(MPa): 3.8 Setting Pressure(Kn): 30 Weight(Kg): 22.5 Transport Package: Export Standrad Package Origin: Jining City, Shandong Province, China Product Description Application of DWB 28 Tunnel Light Single Hydraulic Acrow PropDWB 28 Tunnel Light Single Hydraulic Acrow Prop is an emulsion or hydrostatic water as the working medium, as key parts (plunger, cylinder, base, return spring, etc.) with a leading anti-corrosion technology, there are certain acid and alkali resistance, suitable for different work environment for working resistance ≤ 30kN, the temporary support is brittle FRP materials which should be used to avoid the impact, supporting the use of three valves.Parameter of DWB 28 Tunnel Light Single Hydraulic Acrow PropParameterDWB28-30/100DWB22-30/100DWB25-30/100Max.Height(mm)280022402500Working Stroke(mm)570/820570/820570/820Rated Resistance(kN)303030Rated Working Pressure(MPa)3.83.83.8Setting Pressure(kN)303030Cylinder Inside Dia.(mm)100100100Working Pressure of Safety Valve(MPa)3.83.83.8Weight(kg)22.52122ParameterDWB31.5-30/100DWB35-30/100DWB38-30/100Max.Height(mm)315035003800Working Stroke(mm)570/820570/820820Rated Resistance(kN)303030Rated Working Pressure(MPa)3.83.83.8Setting Pressure(kN)303030Cylinder Inside Dia.(mm)100100100Working Pressure of Safety Valve(MPa)3.83.83.8Weight(kg)252736Working MediumEmulsified Liquid, Hydrostatic Water.Images of DWB 28 Tunnel Light Single Hydraulic Acrow Prop